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Construction Technique Of The Muddy-Seashore Protective Forest System Along The Coast

Posted on:2003-05-23Degree:MasterType:Thesis
Country:ChinaCandidate:W L PanFull Text:PDF
GTID:2133360065460941Subject:Ecology
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ttis thesis is the No.l special topic in the subject of Smp and ExPlOraho of theECowtl FOresny Ewieertw TeChnique in the COastal Rwi, belongin to the field ofecological engineering. The study are4 Which is a fragile regioll, is frOm the estUny ofYalvjiang M in Liaoning provine to Laitheu Bay in Shanong province, including allthe coatStal muddy seashOre in the Ptovinces of Liaoning, ShandOng~and Hebei, and itstota length is l5l3An. The main cOllteDt is: (l)study on the suivival condition of thecoastal saitstandin vegetaon and its aPplication in the sihaculbe; (2)study on suitableland for sultable trde of the main forehation tree sPecies for the muddy-seashOre sheiterbelt; (3)linProvment of muddyseashore salinized soil and necessny combined techniquefor the enginerin foreedon; (4bee species arrangnent and -- for the muddyseashore.After ten yeare of StUdy based on investigaton of pled coIIUnunies in boicalsectons and chemical analsis of soil, the salbShaing veghon plant COnUnedeswas revaled on aspect of twe,distribution,successbo and reltohiP with soil tyPe. Bymeans of the field exPerimefit and Watopculturd and sand-culbed trCes' resitricesimulation exPeriment more than l0 tree species was selected for fOrestaion, sultale fordifferent ooes of saline-alkali lands by means of field exPeriment and water-cultured andsand-culturd. This crethely solved the difficulty in the selecton of forestation species formuddyseashore sheiter forest. The necessny comprehensive techhical forehationmeasures boroving salithed soil wer Pu foed for the firS tha aPplyiPg the dominanbiological measures, which is uSin ultrogen-fialng plants of legUm and non-legUme tobove saline-Wi soil, comined with the engineering measures twrovin the soil. Thesoil saline caPasity decreased 50%, forestaton rtal and reservation tatio ascended tO80% from 20%, and the foreStation neck on the muddy seashore was broken off Thoughthe fixing exPerimen in the field and compared with the intemaional shelter belt of thesame ldnd, the ecologyeconomy sea-Protcting plantaon model of grass-bush-crop andrefmed mbong twe of tree species Chpoen and StIUCtUr are suggested. ms talycaused good effects, popularized durin its exPeriInent and research.
Keywords/Search Tags:muddy seashore, saiine-alkali land, shelter forest Systm, soil improvement, saline vegehaon
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